One of the busiest sections of highway in the Twin Cities will be closed for the entire weekend.

Both directions of Interstate 494 from Hwy. 100 west to Hwy. 212 were shut down at 10 p.m. Friday as part of the Hwy. 169/I-494 interchange reconstruction project.

The Minnesota Department of Transportation says the closure is needed so crews can place beams to span the interstate for the new flyover bridge from westbound I-494 to southbound Hwy. 169.

The shutdown will end at 5 a.m. Monday, in time for the morning rush hour.